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No. 31,714. 4 PATENTED MAR. 19, 1861,

- J. HALE M. s. ATTERBURY.

GOAL OIL LANTERN.

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LANTERN.

Specification of Letters Patent No. 31,714, dated March 19, 1861.

T 0 all whom it may concern:

Be it known that we, JAMES HALE and J S. ATTERBURY, of Pittsburg, in thecounty of Allegheny and, State of Pennsylvania, have invented a new anduseful Improvement in Coal-Oil Lanterns; and we do hereby declare thatthe followingis a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part ofthis. specification, in which Figure 1 is a Vertical central section ofour improved coal oil lantern. Fig. 2 is a sectional perspective Viewillustrating more plainly our improvement.

The same letters of reference in each of the two figures indicatecorresponding parts.

Our invention relates to a lantern for burning coal oil without the useof an ordinary chimney, the lantern glass serving all the purposes ofthe chimney.

For use in connection with a lantern and lamp constructed substantiallyas hereinafter described, the nature of our improvement consists in alantern glass with an outer flange blown or formed around its base, incombination with a horizontal extension or flange of the burner cap, inthe manner substantially as hereinafter described.

To enable others skilled in the art, to make and use our invention, wewill proceed to describe its construction and operation.

In the accompanying drawing, A, represents a lamp or oil cup, with flatwick tube, placed on the base B, of the lantern, in any approved manner.

C, is a perforated cup of trumpet shape placed ontop of the lamp andaround the wick tube.

D, is the toothed wheel for raising the wick.

E, is a burner cap with an oblong slit in its top and holes around itsbase; it is hinged or otherwise attached to the upper edge of the cup C,and sets upon it as represented. A horizontal ring flange or annulardisk F, extends from the base of the cap to within a short distance ofthe circumference of the trimming or support C, of the lantern glass H,as represented.

I, is an outer flange blown or otherwise formed around the base ofthelantern glass. This flange rests upon the annular disk of the capwhen the parts of the lantern are put together, as represented.

The air to support combustion enters through the passages a, b, 0, ofthe trimming or lantern glass support, and finds its way to the wicktube through the perforations (Z, of the trumpet shaped cup whichincloses the wick tube.

It will be observed that all of the air is compelled to pass through thetrumpet cup and come in immediate contact with the wick-tube, as allchance for it to circulate between the outside of the trumpet cup andthe inner side of the trimming or lantern support is cut off by thecombined agency of the flange of the lantern glass and the annular diskof the cap.

\Ve are aware that it is not new to compel the air to pass directly incontact with the burner or wick tube, but we are not aware that this hasbeen accomplished simply by the combined agency of a flange formed onthe base of a lantern glass and an annular disk extending out from theburner cap. Thus effecting this object, greatly simplifies theconstruction and lessens the cost of lanterns and at the same timeaffords a free chance for the air which supports combustion to enterthrough passages 0, located above the flange of the lantern glass andannular disk and to have direct communication through the perforationsof the trumpet cup, with the wick of the lamp.

It is very important to have the joint be tween the annular disk and theflange of the lantern glass closed tight, and as it is difficult to sofit the circumference of the disk to the circumference of the trimmingor lantern support, in a manner to secure this result, it becomesnecessary to accomplish it by the combined agency of the disk andflange. It also is necessary to have the disk of a smaller diameter thanthe trimming in order that the lamp may be readily connected anddisconnected from the lantern.

Our arrangement for supplying and co'ndisk F Will form a very perfectjoint. In formed around its base, in combination this manner thecombustion Will be rendered with a horizontal extension or flange F, of10 steady and perfect. the burner cap E, substantially as set forth.

What We claim as our invention and cle- JAMES HALE. sire to secure byLetters Patent is- J. S. ATTERBURY.

For use With a lantern and lamp constructed substantially as described,a lantern glass With an outer flange I, blown or 1 Witnesses A. S.NICHOLSON, T. B. ATTERBURY.

